Premier League reality started at Old Trafford season one. We had an injured player, genuine, but Man U refused to put the ball out. In the end we did but at the restart Man U kept the ball.
From then on I realised life was different in the Prem.
I may have misremembered but wasn't that Knockaert who was injured? I seem to remember him being fine as he usually is after going down clutching one part of his body or another. Every team has a few who do it and we have our fair share. I have no problem with players carrying on. Simple rule change will stop all the nonsense - ref can call on the physio to attend the player whilst the game continues around them. 90% of the "injured" players will soon get up. If they are seriously injured the ref can stop the game.